Feeding arrangement in sharpening machines for razor blades



Aug.. 25, 1931, s. LARssoN 1,829,810

FEEDING ARRANGEMENT IN SHARPENING MACHINES FOR RAZOR BLADES Filed April 15. 1928 2 sheets-sneer 1 if 521/ C Aug., 25, 1931. s. LARSSON 1,320,810

l FEEDING ARRANGEMENT IN SHARPENING MACHINES FOR RAZOR BLADES Filed April 13, 1928 2 Sheets-Sheet 2 JHM/ifm' ,Sv e/z maison n Patented Y 1` 931 ,l

, svir-LARSSON, or sAlvnvIKEN,SWEDEN j j FEEDING ARBNGMENT rrrIk 'SHARPENNG'MAGHINES ron RAZOR BLADES applicati@ ffiiedeqiriris,1928seiai yno."269.8279, `and in sweden April. 14, 1927.

'd {This invention/relates to suchY a'fmachine,

' wlierethe blades, whichy are to` be sharpened,

' are '(,ca/rried to the! sharpening memberr by means of a conveyorffor instance afchain'or a fgbelhwhichfare kfastened catching memi bersljs'uch as projectionsy orfpins'which-suity corresponding holes' inthe blade. f

f-The purposeof theginvention is to cause anaautomatic eedingof the blades. f f kle y ,'lfhel-inventionis mainly characterised rthereby that the blades arranged ina pile are arranged one byf one 'toV be shoved down c againstthe belt atacertainangle tothis by l' :means of a suitable,'. mechanically/actuated i5`n1`ember, .in orderlthatoneof fthe 'catching members on the belt may vat the forward move-y mentk of the beltautomatically catch into the hole. at the vforward end of the blade and *thatjea'ch blade is'arranged bythe; pulling fl AVorwzird: tobe pressed down against the belt by the weight or" the `pile or thelile, whereby thefholel at the other end of the bladefis placed over thev next v following 'catching member on thebelt. u V' i2`5'* Two embodiments itaken 'as examples ofthe invention are shownuin the accompanying drawings.k VVHerein isFlg. v11a slde view partly 1n section of the feeding arrangement acfcordin'g to theL one embodiment, Fig.y 2 shows,

'ed Vcertain parts shown in ig.1, seen in plan, and Fig. 3 lsa vertical cross section offFig. 1. Fig. 4V-sh0ws a side viewpartly in section of the other embodimentk of the ffeeding vkar-` rangement.

'35? In the embodiment accordinglto'Figs.1-3

. the-endless beltor chain'i'skindicated by y1. -Thisjis fed in the direction of the arrow a j with the aid oftwo guidingy or chain wheels 36, only oneof whi'chis partly shown in Fig.

4405 4'. The belt or chainisnprovided with projections or catching members such asfpins 2. v etween these pins the chain is providedfwith holes13, which bycatchinground projections 4 projecting yfrom, the circumference of ya 4.5v wheel 'set this wheelinmotion. kThe wheel 5 -is looselyy journalled'con a 'shaft f 6. On e the same shaft on a turnable sleeve v7` is journalled an arm 8, which by means of its prong f shaped end 9 grips.' journals 10,'pro`je`cting' 50 fromy saidsleeve 7. `The arm'can thus be turned around the shaft 6 and ask wellswung around the journals 1()r ina planecoinciding withr the lengthwise direction of the shaftg.

yThe ,armv 8 isY provided at the top with a groove 11. for an arm 12, which projects from and normally holds the arm 13 and thereby "Y n n 65,-

the karm 8in its right end positioninotl 'sh'own)-in-Fig. 1. Onvthe wheel 5 teeth 19 are arranged in a circle,vwhich teeth during y the turning of the wheel by means of the belt 1` can grip the ar1n8 and against the ac-f tion of the sp'ring'l canswing the arm down- Wards; to the left (F ig. 1) .-r

On the 'frame in a suitable holder 20 is ar- .i

ranged a piston rod 21,*movable in holes 22,

.221"in the holder 20. The piston redis providedwith ya cross piece 23; and a piston 24. Thecross piece is provided with two springs 25, which in a suitable way (Fig. 2)' are fastened to the frame and try to pullthe cross piece with thel` piston to the left in Fig. 1.;

Theforward piece 37 which supports the springs'25, is-omitted in Figs. 1 and 4. Two shoulders'26,27 hereby limit the movements ot the cross piece 23. The piston 24 itself runs into a discharging canal28 for! the rayzorfblades, which'in the form of a pile 29 are arrangedin amagazin'e or a receptacle rweight 31 serves to press the blades down in the path ofthe piston. Thelowermost blade just being discharged is indicated by 32'.y 'TA guide 33 is under the'iniiuence of a spring 34 movable up and down in relation to the blade being fed;y

" f The arrangement works inthe followingk manner. L f Atv the pulling forward of the Ybelt 1 in ythe ydirection/fotthe arrow athe wheel 5y isy f. -A f causedy to rotate byv means of the holes 3and ,y 'j y if' the catching members 4. By the teeth 19 on orf-ICE l the wheel 5'the lever 8 iscaused to particirparte, in the movement, whereby the piston rod` l y ,y

" on vtlieglbelt l'. at itsforvvard. movementcan' catchviiitotheforward hole on'the blade, the cross piece 23 of the piston rod comes toirest against the shoulder 27 and 'prevents further vshoving` down of the blade. At thel same time'as the lever 8 ismovednby the teeth 19, 'it is movediroin tli'e'fvvh'eel 5 by the shoulder .35, whereby. thesame in ,acertain position, directly after the bladeis fully shoved'dovvn, is,releasedV and pulled back in to` initial position-by tliefspring. l?, whereby the- .piston rod isralso pulled baelrin to, initial position. At the pulling forward' of theblad-efb-y the pini? it. ,isy pressed ati the samey time: down the" belt 1 bythe springl 34 and the gni 38,. whereby theI next olloavi-nghole in the bladel cernes onthe next following catch'- ing member 2V onthe belts The: embodiment shown-in Fig. l diiers from tha-trearlier described only therein that the-@blades areliere fed; onthef belt l bythev passing of :this over the eond'neti'ngyor guidiing-Wlieel 36.' vThe lWheel 5 is herebyv driven in aasnitable manner trom the belt l or 'frein the conducting-or guidingwlieel but in an opposite-.direoti-nn vfrom that Fi l f Tliemanner of WorkingI-v is fortli'e rest like thatdescribedin theiirst embodiment, Wherel by however they springs'Qf 'are here-tension edV during the moving .01, tl'refvfheel 5 and the arm' S 'by belt-and t riding WheelV respecf tively4 andv at the'.releasingvoi2 rthe. armv 8, Ythey cause-itv and'vthelpiston red to snap baek'to the left (Figa Maier-'the discliargingof a blader; rlhe spring 1T is omitted by this embediment.. f,

nt,.that by both embodiments the vin opposite directions,theresilient means of the arm being morepovverfiil thus 'to hold the piston in a retracted position, arm-engaging means on the Wheel to engage and rock the arm against the tension of its resilient means thus yielding to the resilient' means of the piston for amovement of the piston to displace anarticle, anda carril over Whichthe arm rides to shiftit on its pivot `tor disengagement of the arm from said armengaging arms in the oppositer direction, asleeve to which the other arm is pivoted and which is mounted ontlie: shade-a slip connection be-Y tween the arms eansingtliemwtorocl together, arm-engageabl-e meansV engageable with one armthusy to rock both arms `against thel tensien' of thev respective resilient meansso that the: piston ear-n make a Working stroke, and ineens'il Vr shiftinff said arinby virtue of said slip Connection for :disengagement .thereof fromy said'arm-engaing means and a return of both arms andi the 'piste/nto; the original position. y Y g I 5- In Witness whereof, I havehereuntosigned mvname. y ,Y y,

- 'i SVEN LARSSON.

blades are fed on' to ,thev belt or chain* in y Mi` oblique' direction towardsthis.y

, It should: be. noticed, that the'sh'ovvn embodi-inents are onlyt-aken as examples and that the object` of the -ifnyention' be modied irin-ianyg .Wa-ys Without deviating from the i priiiejrple oi? the ini/endr on. For instane'eone -a-.-piston tofdisplace the articles toward-the conveyor, said piston having;` a cross-piece,

,ing/means: ffor its rotation: by `tire conveyor,

Y arm pivoted' on thesliaft fer sluiting; moves menftgin't e pla-ne of the shaft anis and having` engagement with the arose-piece, resilient 51 means respeetively urging tliepisten and arm` may insteadzof the spr' i'gs (for instance 17 ash'a'i't loosely 'supporting a feednwlieel hav- Y; l,'Afeedingfrneehanism'comprisinganiov- I able conveyor, a magazine to contain articles,y 

